* added a new example script to search the keyservers and import the
results, this time using Marcel Fest's hkp4py module.
* Updated the key importing section to match this addition.
* Tested with the current version of hkp4py from github.
Tested-by: Ben McGinnes <ben@adversary.org>
Signed-off-by: Ben McGinnes <ben@adversary.org>
